Model Jenner deleted her initial tweet, and didn't immediately respond to Cobain. But on Thursday night, she decided to fire back.

"An individuals feelings are relative to their environment. you don't know me, you don't even know what I was referring to," she wrote (via Gossip Cop), which she later deleted. "I am aware that I am very privileged and blessed, and I'm thankful for that everyday. I know there are greater problems . . . in the world. I pray for those people every night and give back as much as I can. So who are you to judge me?"